(19)
(11) EP 0 307 582 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
29.11.1989 Bulletin 1989/48

(43) Date of publication A2:
22.03.1989 Bulletin 1989/12

(21) Application number: 88111561.2

(22) Date of filing: 19.07.1988
(51) International Patent Classification (IPC)4: B60C 23/04
(84) Designated Contracting States:
DE ES FR GB

(30) Priority: 21.07.1987 IT 6763287

(71) Applicant: URMET S.p.A. Costruzioni Elettro-Telefoniche
I-10154 Torino (IT)

(72) Inventor:
  • Mondardini, Massimo
    I-10123 Torino (IT)

(74) Representative: Modiano, Guido, Dr.-Ing. et al
Modiano & Associati S.r.l. Via Meravigli, 16
20123 Milano
20123 Milano (IT)


(56) References cited: : 
   
       


    (54) Pressure-balancing distributing valve with selective cutoff for tyres of twin wheels of motor vehicles equipped with an onboard minimum-pressure warning system


    (57) A valve comprising a distributor body (20) with a single collector (21) having, at one end, a cap valve (22) connectable to a source of compressed air, and at the other end sealing coupling means for connection to the electropneumatic transducer of a warning system; a pair of distribution ducts (25-26) extending from said collector and ending with corresponding tangs for the insertion of the tubes leading to the tires and a pair of valve bodies (29-30) pushed to open by the inflation pressure and actuated by an adjustable spring (37) so that each cuts off its corresponding derived duct, to cutoff the connection between the two tires, when the action of the pressure becomes smaller than the load of the spring.







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